Recent content by kaye77

please could you help me understand this is very simple terms. 1.0 x 10-2 = 1:100 (as in ten to the power of minus 2) i do not understand what i need to do to get it into a ratio.

hi i do not understand how to get this as a ratio. 1.25 x 10-2Sv-1 = 1:80 (the - is a to the power of), how does that equal 1:80 what do i do step by step to get 1:80 please could you help i do not understand this.

how do i convert 2.8g/cm3 to kg m-3?? what is the formula?

thankyou

is that all, thankyou

acoustic impedance z density p speed of sound c the speed of sound is 330 ms-1 density is 1.3 kg m-3 i need to know what to do with density and spped of sound to get acoustic impendance i know the answer is 0.00043 kg m -2 s-1 x10 but i do not know how to work out the formula?

what do i do to p and c to get z when z=pc please help i know its prob dumb but i am so stuck.

z = pc what do i need to do with p and c figures in order to get z this is prob really dumb but I am so stuck please help.